Chromium bridging ligands

Chromium, (ri6-benzene)tricarbonyl-stereochemistry nomenclature, 1,131 Chromium complexes, 3,699-948 acetylacetone complex formation, 2,386 exchange reactions, 2,380 amidines, 2,276 bridging ligands, 2,198 chelating ligands, 2,203 anionic oxo halides, 3,944 applications, 6,1014 azo dyes, 6,41 biological effects, 3,947 carbamic acid, 2,450 paddlewheel structure, 2, 451 carboxylic acids, 2,438 trinuclear, 2, 441 carcinogenicity, 3, 947 corroles, 2, 874 crystal structures, 3, 702 cyanides, 3, 703 1,4-diaza-1,3-butadiene, 2,209 1,3-diketones... 

Chromium complexes acetylacetone complex formation, 386 exchange reactions, 380 amidines, 276 bridging ligands, 198 chelating ligands, 203 carbamic add, 450 paddlewheel structure, 451 carboxylic adds, 438 trinuclear, 441 oorroles, 874... 

Table 2. Chromium(II) Dimers with Aromatic 2YR3-4R2-6R1- (XC5H2) Bridging Ligands ...

S-Donor ligands. Novel chromium(iii) complexes with p-disulphido (S—S) bridging ligands have been prepared by oxidation of CrSH with iodine and Fe in HCIO / LiClO media to give CrS2Cr and CrSjHFe species. " ... 

The basic process can be exemplified by the reaction of the cobalt(III) complex [Co(NH3)5(NCS)]2+ (the oxidant) with the chromium(II) complex [Cr(OH2)6]2+ (the re-ductant), where thiocyanate acts as the bridging ligand. The overall reaction in aqueous acidic solution is shown in Equation (5.58). 

We have reported the synthesis and the characterisation of a new series of the polynuclear complex compounds of iron(iii) and chromium(in) where the bridging ligand is squarate dianion, coordinated in a /i-l,3-bis(monodentate) manner. 

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